extreme NYSE tick readings?

When using other data providers in recent years, a +1000 or -1000 nyse tick reading was not too uncommon. in fact, we commonly used these readings as part of a trade entry model. I use CQG with ninjatrader, and now, almost never see such readings, although those I keep in close contact with , still see such readings using other data providers. Apparently the tick indicator and some kind of short term sweep a number of times each minute, in order for it to stay current. Has this sweep cycle changed for CQG...? and if so, how often is this calculation updated within each 1 min interval....? thxs

Comments

Your observation of lower NYSE tick readings appear to be a result of lower historical volatility for the last couple of years as seen on the daily DJI chart below. I am using the range of the last 55 days in the historical volatility calculation. If you could have a friend of yours send a graphic of NYSE tick on another vendor - I will have something to compare our results with.